Today is Thursday, Aug. 2, the 215th day of 2012. There are 151 days left in the year.

Today's Highlight in History:

On Aug. 2, 1862, the Ambulance Corps for the Army of the Potomac was created at the order of Maj. Gen. George McClellan during the Civil War.

On this date:

In 216 B.C., during the Second Punic War, Carthaginian forces led by Hannibal defeated the Roman army in the Battle of Cannae.

In 1776, members of the Continental Congress began attaching their signatures to the Declaration of Independence.

In 1876, frontiersman "Wild Bill" Hickok was shot and killed while playing poker at a saloon in Deadwood, Dakota Territory, by Jack McCall, who was later hanged.

In 1909, the original Lincoln "wheat" penny first went into circulation, replacing the "Indian Head" cent.

In 1922, Alexander Graham Bell, generally regarded as the inventor of the telephone, died in Nova Scotia, Canada, at age 75.

In 1923, the 29th president of the United States, Warren G. Harding, died in San Francisco; Vice President Calvin Coolidge became president.

In 1934, German President Paul von Hindenburg died, paving the way for Adolf Hitler's complete takeover.

In 1943, during World War II, Navy boat PT-109, commanded by Lt. John F. Kennedy, sank after being rammed by the Japanese destroyer Amagiri off the Solomon Islands.

In 1964, the destroyer USS Maddox suffered light damage from North Vietnamese patrol torpedo boats in the Gulf of Tonkin.

In 1974, former White House counsel John W. Dean III was sentenced to one to four years in prison for obstruction of justice in the Watergate coverup. (Dean ended up serving four months.)

In 1985, 135 people were killed when a Delta Air Lines jetliner crashed while attempting to land at Dallas-Fort Worth International Airport.

In 1990, Iraq invaded Kuwait, seizing control of the oil-rich emirate. (The Iraqis were later driven out in Operation Desert Storm.)

Ten years ago: A federal judge ruled the U.S. government had to reveal the names of people detained in the investigation of the Sept. 11 terrorist attacks (an appeals court later sided with federal authorities). Pope John Paul II returned to Rome after ending an 11-day pilgrimage to Canada, Guatemala and Mexico.

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